Research Article
A Geostatistical Investigation into the Effective Spatiotemporal Coverage of Road Weather Information Systems in Alberta, Canada
Figure 6
Spatiotemporal variograms. (a) Empirical variogram of Nov 2014. (b) Fitted variogram of Nov 2014. (c) Empirical variogram of Jan 2015. (d) Fitted variogram of Jan 2015.
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